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