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