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