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