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