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