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