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