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