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