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