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