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