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