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