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)(21,22,27,26)(23,28,31,36)(24,29,33,32)(25,34,35,30)(5,7)(6,11)(8,16)(9,18)(10,17)(12,19)(13,20)(14,15)(21,23,27,31)(22,28,26,36)(24,30,33,34)(25,32,35,29)(1,2,3,4)(5,8,10,9)(6,12,14,13)(7,16,17,18)(11,19,15,20)(21,24)(22,29)(23,25)(26,32)(27,33)(28,34)(30,36)(31,35)(5,8,10,9)(6,13,14,12)(7,16,17,18)(11,20,15,19)(21,22,27,26)(23,28,31,36)(24,32,33,29)(25,30,35,34)(5,9,10,8)(6,13,14,12)(7,16,17,18)(11,19,15,20)(21,25)(22,30)(23,24)(26,34)(27,35)(28,32)(29,36)(31,33)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.