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