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