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