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