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