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