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