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