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