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