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