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