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