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