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