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