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