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