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