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