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