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