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