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