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