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