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