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