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