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)(23,30)(25,26)(28,35)(29,33)(31,36)(32,34)(2,3)(5,7)(6,10)(8,15)(9,14)(11,19)(12,18)(13,16)(17,20)(21,22,27,24)(23,31,32,28)(25,33,26,29)(30,36,34,35)(5,8,9,16)(6,11,12,20)(7,13,14,15)(10,17,18,19)(21,23,27,32)(22,28,24,31)(25,30,26,34)(29,36,33,35)(1,3,4,2)(8,16)(11,20)(13,15)(17,19)(21,24,27,22)(23,31,32,28)(25,29,26,33)(30,36,34,35)(6,12)(7,14)(11,20)(13,15)(21,25,27,26)(22,29,24,33)(23,30,32,34)(28,36,31,35)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.