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