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