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