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