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