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