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