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