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