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