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