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