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