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