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