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)(36,41)(37,50)(38,54)(39,44)(40,47)(42,49)(43,52)(46,61)(48,57)(51,56)(53,60)(55,62)(58,64)(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)(36,46)(37,51)(38,55)(39,48)(41,56)(42,61)(43,62)(44,59)(45,50)(47,52)(49,63)(53,64)(54,58)(57,60) 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)(33,36,39,38)(34,41,44,54)(35,46,48,55)(37,49,53,52)(40,56,59,58)(42,60,43,50)(45,61,57,62)(47,51,63,64)(3,15)(8,23)(13,24)(14,29)(16,17)(22,28)(27,32)(30,31)(33,37,36,49,39,53,38,52)(34,42,54,50,44,43,41,60)(35,47,55,64,48,63,46,51)(40,57,56,62,59,45,58,61)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.