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