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