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