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