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