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