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