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