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