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