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