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