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