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