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