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