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