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