One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4) involution — undirected(5,6) involution — undirected(7,8)(9,12)(10,11)(13,14)(15,16,19,23)(17,20,25,29)(18,21,26,22)(24,27,30,28)(8,11)(12,14)(15,17,19,25)(16,20,23,29)(18,24,26,30)(21,27,22,28)(7,9,10,13)(8,12,11,14)(16,21)(18,26)(20,27)(22,23)(24,30)(28,29)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.