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