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