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