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