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