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