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