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