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)(23,25)(24,31)(26,30)(27,34)(28,32)(29,35)(33,36)(1,2)(3,4)(5,7,16,18,10,17,9,8)(6,11,19,13,12,20,14,15)(21,23,25,22)(24,29,33,27)(26,30,32,28)(31,34,36,35)(2,4)(6,12)(7,17)(8,18)(14,19)(21,24,32,35,25,33,26,34)(22,27,30,36,23,29,28,31)(5,8,9,17,10,18,16,7)(6,13,14,11,12,15,19,20)(22,23)(27,29)(28,30)(31,36)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.