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