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