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