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