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