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