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