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