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)(22,25)(23,29)(24,32)(34,36)(14,17)(18,20)(21,22,26,25)(23,27,29,31)(24,28,32,33)(30,34,35,36)(5,6)(7,9)(8,10)(11,12)(13,14,16,17)(15,18,19,20)(21,23)(22,27)(24,30)(25,31)(26,29)(28,34)(32,35)(33,36)(1,2)(3,4)(5,6)(7,9)(8,10)(11,12)(21,24)(22,28)(23,30)(25,33)(26,32)(27,34)(29,35)(31,36) involution — undirected(5,7,8,12)(6,9,10,11)(13,15,16,19)(14,18,17,20)(21,25,26,22)(23,31,29,27)(24,28,32,33)(30,34,35,36)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.