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