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