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