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