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