One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4) involution — undirected(5,6)(7,15,18,11)(8,12)(9,13)(10,14)(16,29,32,23)(17,30,34,24)(19,25)(20,26)(21,27)(22,28)(31,36,33,35)(5,7)(6,11)(8,16)(9,17)(10,18)(12,23)(13,24)(14,15)(19,31)(20,32)(21,33)(22,34)(25,35)(26,29)(27,36)(28,30) involution — undirected(5,8,10,20)(6,12,14,26)(7,16,18,32)(9,21,22,19)(11,23,15,29)(13,27,28,25)(17,33,34,31)(24,36,30,35)(5,9,10,22)(6,13,14,28)(7,17,18,34)(8,19,20,21)(11,24,15,30)(12,25,26,27)(16,31,32,33)(23,35,29,36)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.