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