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