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