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