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