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