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