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