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