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