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