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