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