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