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