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