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