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