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