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