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