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