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