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