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