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