I prefer hanging them, as laying them out will not necessarily remove the twists and kinks. If you have a fly system, attach one end of each cable to a
batten and fly it to high
trim. If the cables are too long, attach just the center.
Another way, though more labor-intensive, is to throw one end off a high place, then coil it by pulling up one coil's length at a time.
Once relaxed, take care not to make the cable all tense again when coiling. Over/under or CW or CCW; the cable will tell you what it wants. Become Zen with your cables, and they will do you right.