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