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