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