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