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)(22,27)(23,30)(24,26)(28,35)(31,33)(34,36)(2,3)(5,7,10,16)(6,11,13,14)(8,15,9,18)(12,19,17,20)(21,22)(23,28)(24,32)(25,27)(26,29)(30,36)(31,34)(33,35)(1,2,4,3)(21,23,25,31)(22,28,27,34)(24,30,26,33)(29,35,32,36)(5,8,10,9)(6,12,13,17)(7,15,16,18)(11,19,14,20)(21,24,25,26)(22,29,27,32)(23,30,31,33)(28,35,34,36)(1,3,4,2)(5,9,10,8)(6,12,13,17)(7,15,16,18)(11,20,14,19)(21,24,25,26)(22,29,27,32)(23,30,31,33)(28,35,34,36)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.