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