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