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