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