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