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