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