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