One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,12,16,8)(4,17,21,28)(5,11)(6,22)(7,10)(9,19,26,20)(13,30)(14,27,15,24)(18,29)(23,31)(25,32)(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)(1,3,7,16)(2,8,10,12)(4,18,21,31)(5,15,6,14)(9,25,26,30)(11,27,22,24)(13,19,32,20)(17,23,28,29)(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)(1,4)(2,9)(3,13)(5,20)(6,19)(7,21)(8,23)(10,26)(11,28)(12,29)(14,18)(15,31)(16,32)(17,22)(24,30)(25,27)(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.