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