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