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