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