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