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