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