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