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