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