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