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