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