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