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