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