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