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