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