One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9,17,33)(4,20)(5,11,25,38)(6,14)(7,13)(8,12)(10,24)(15,34,42,57)(16,43)(18,32,19,31)(21,29,46,48)(22,51,54,49)(23,39)(26,40,28,37)(27,36)(30,45)(35,53,60,52)(41,59)(44,56)(47,58)(50,55)(61,64)(62,63)(1,3)(2,9,12,33)(4,21,23,46)(5,16)(6,18)(7,19)(8,17)(10,34)(11,30,38,43)(13,31,14,32)(15,24,42,27)(20,48)(22,50,54,62)(25,45)(26,44)(28,47)(29,39)(35,59)(36,57)(37,56,40,58)(41,53,61,52)(49,63)(51,55)(60,64)(1,4,6,27,8,23,7,24)(2,10,14,20,12,36,13,39)(3,15,19,21,17,42,18,46)(5,22,28,52,25,54,26,53)(9,29,31,57,33,48,32,34)(11,35,37,49,38,60,40,51)(16,41,44,50,45,61,47,62)(30,55,58,64,43,63,56,59)(1,5,7,26,8,25,6,28)(2,11,14,37,12,38,13,40)(3,16,19,44,17,45,18,47)(4,22,24,53,23,54,27,52)(9,30,32,56,33,43,31,58)(10,35,20,49,36,60,39,51)(15,41,21,50,42,61,46,62)(29,55,34,59,48,63,57,64)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.