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