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