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