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