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