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