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