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