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