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)(13,14,19,20)(15,17,18,16)(21,22,26,27)(23,28,30,25)(24,32,33,29)(31,34,36,35)(13,15,19,18)(14,16,20,17)(22,27)(23,30)(24,33)(34,35)(5,6)(7,9)(8,10)(11,12)(13,16,19,17)(14,15,20,18)(21,23)(22,28)(24,31)(25,27)(26,30)(29,35)(32,34)(33,36)(1,2,3,4)(5,6)(7,9)(8,10)(11,12)(13,17,19,16)(14,15,20,18)(21,24,26,33)(22,29,27,32)(23,31,30,36)(25,34,28,35)(5,7,8,11)(6,9,10,12)(13,18,19,15)(14,16,20,17)(21,25,26,28)(22,30,27,23)(24,34,33,35)(29,36,32,31)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.