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