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