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