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