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