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