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