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