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