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