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