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