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