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