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