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