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