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