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