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