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