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