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