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)(11,14)(12,13)(15,16)(18,23)(19,27)(20,26)(29,30)(1,3,5,4)(2,6,8,7)(17,18,21,23)(19,28,27,32)(20,25,26,22)(24,30,31,29)(10,13)(14,16)(17,19,21,27)(18,24,23,31)(20,28,26,32)(22,30,25,29)(1,3,5,4)(2,7,8,6)(9,11,12,15)(10,14,13,16)(17,20)(18,25)(19,24)(21,26)(22,23)(27,31)(28,30)(29,32)(1,4,5,3)(2,6,8,7)(18,26)(20,23)(22,25)(24,32)(28,31)(29,30)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.