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