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