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