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