your diet and training should be optimized wither your on cycle or off ..so if your training is completely optimized (on cycle or not) what changes on cycle?
when on cycle your MRV changes (increases) because your strength goes up and so does your ability to recover. So being your MRV goes up, you should adjust your training to correspond with that. More volume, and more weight.
Of course your training 'style' does not matter , thats all based on your specific goal for whatever meso-cycle you may happen to be in (wither it be a massing and hypertrophy phase, a strength phase, cutting phase etc.). No point in changing training 'style' just cause your on a steroid cycle .. if your in a strength phase then still train for strength.
MRV = Maximum Recoverable Volume. -- the maximum amount of work load and volume you can do and still be able to fully recover from the training.
If you can push heavier weight, and you can recover faster while on cycle ,, then MRV increases. so adjust your training to your new MRV while on cycle.. more sets, more reps, more weight
example , if your MRV while off cycle allowed for 25 working sets a week for quads , while on cycle that could be 30 . or another way to think of it is if you could handle and recover while off cycle from 6 sets of squats at 315 lbs for 8 reps as part of your working sets for quads,, then while on cycle you can simply adjust that up and handle 8 sets of 345 lbs for 8 reps.
keep in mind your MRV is 'total body' MRV and it has a cap/limit . if you adjust your volume up while on cycle, don't expect to be able to up your volume evenly across all body parts ,, you'll exceed your MRV and then not recover well and then not grow . You'll more then likely have to focus on a few select body parts to increase your volume for . you can bring up your back and legs for example,, but you only have so much MRV to work with so don't expect you'll be able to bring up you back and legs , plus your arms and chest and shoulders , on that given meso-cycle . you have limit and thus have to be selective. your next meso-cylce can be focused on increase volume for other body parts to bring up. it can't be done all at once on one cycle. its a marathon, not a sprint . it takes years and years of training to build a well rounded physique.