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