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