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