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