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)(19,24)(20,22)(21,25)(23,27)(26,31)(28,29)(30,32) involution — undirected(2,6)(3,7)(9,10)(11,14)(12,13)(15,16)(17,19)(18,23)(20,24)(21,26)(22,27)(25,30)(28,31)(29,32) involution — undirected(2,6)(4,8)(10,13)(14,16)(21,29)(25,28)(26,32)(30,31) involution — undirected(2,6)(3,7)(11,15)(14,16)(17,20,22,18)(19,24,27,23)(21,28,29,25)(26,31,32,30)(1,3,5,7)(2,4,6,8)(9,11,12,15)(10,14,13,16)(17,19)(18,24)(20,23)(21,26)(22,27)(25,31)(28,30)(29,32)(1,4)(2,7)(3,6)(5,8)(9,10)(11,14)(12,13)(15,16)(17,21)(18,25)(19,26)(20,28)(22,29)(23,30)(24,31)(27,32) 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.