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