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