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