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