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