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