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