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