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