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