One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,7,4,6)(9,10,11,16,13,12,14,15)(17,18,20,25,21,24,29,23)(19,22,26,31,28,30,27,32)(1,3,5,4)(2,6,8,7)(9,11,13,14)(10,15,12,16)(17,19,21,28)(18,22,24,30)(20,26,29,27)(23,32,25,31)(9,12,13,10)(11,16,14,15)(18,23)(19,26)(20,29)(24,25)(27,28)(31,32)(1,4,5,3)(2,7,8,6)(18,24)(22,30)(23,25)(31,32)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.