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