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