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