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