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