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