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