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)(17,21)(18,25)(19,20)(22,26)(23,29)(24,27)(28,30) involution — undirected(4,6)(8,11)(9,13)(16,20)(21,27)(22,25)(28,29) involution — undirected(3,4)(5,6)(7,8,10,11)(9,12,13,14)(15,17,19,24)(16,21,20,27)(18,23,26,30)(22,28,25,29)(15,18,19,26)(16,22,20,25)(17,23,24,30)(21,28,27,29)(3,4)(5,6)(7,9,10,13)(8,12,11,14)(15,16)(17,21)(18,22)(19,20)(23,28)(24,27)(25,26)(29,30)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.