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