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