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