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