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