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