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