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)(21,22,26,30)(23,31,32,27)(24,28,29,25)(33,34,35,36)(1,2,3,4)(5,6)(7,11)(8,12)(9,10)(13,18)(14,16)(15,17)(19,20)(23,32)(27,31)(33,35)(34,36)(6,10)(11,16)(12,17)(18,20)(21,23,26,32)(22,27,30,31)(24,35,29,33)(25,36,28,34)(5,7,9,14)(6,11,10,16)(8,13,15,19)(12,18,17,20)(21,24,26,29)(22,28,30,25)(23,33,32,35)(27,36,31,34)(5,6)(7,11)(8,12)(9,10)(13,18)(14,16)(15,17)(19,20)(21,25,26,28)(22,29,30,24)(23,34,32,36)(27,35,31,33)(5,8)(6,12)(7,13)(9,15)(10,17)(11,18)(14,19)(16,20)(21,22)(23,27)(24,28)(25,29)(26,30)(31,32)(33,36)(34,35) 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.