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