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