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