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