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