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