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