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)(15,16,20,24,19,23,18,22)(17,21,25,28,26,29,27,30)(7,9,12,8)(10,13,11,14)(15,16,18,22,19,23,20,24)(17,21,27,30,26,29,25,28)(3,4,5,6)(7,10,12,11)(8,13,9,14)(15,17,19,26)(16,21,23,29)(18,27,20,25)(22,30,24,28)(7,11,12,10)(8,13,9,14)(15,18,19,20)(16,22,23,24)(17,25,26,27)(21,28,29,30)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.