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