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