One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,12,8,11,6,3)(4,13,17,9,16,23,18,24)(5,10,21,14,19,26,20,25)(15,28,29,22,30,27,31,32)(1,3,7,11,8,12,6,2)(4,9,18,23,16,24,17,13)(5,14,20,26,19,25,21,10)(15,22,29,28,30,32,31,27)(1,4,6,18,8,16,7,17)(2,9,3,13,11,24,12,23)(5,15,21,29,19,30,20,31)(10,22,14,27,26,32,25,28)(1,5,6,21,8,19,7,20)(2,10,12,25,11,26,3,14)(4,15,18,29,16,30,17,31)(9,22,23,28,24,32,13,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.