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)(17,21)(18,22)(19,20)(23,25)(24,28)(26,27)(29,30)(7,9)(8,10)(11,14)(12,13)(16,20)(18,26)(21,23)(24,30) involution — undirected(3,4,5,6)(7,10,12,14)(8,13,11,9)(15,16)(17,23)(18,22)(19,20)(21,25)(24,29)(26,27)(28,30)(7,8,12,11)(9,10,13,14)(15,17)(16,21)(18,24)(19,25)(20,23)(22,28)(26,30)(27,29)(7,11,12,8)(9,14,13,10)(15,18,19,26)(16,22,20,27)(17,24,25,30)(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.