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