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