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