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