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