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