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