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