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)(18,23)(19,26)(25,31)(27,29)(33,34,39,42)(35,40,38,36)(37,41,47,48)(43,45,46,44)(1,3,6,9)(2,7,8,4)(5,11,14,16)(10,15,13,12)(17,18,22,23)(19,24,26,21)(20,25,28,31)(27,32,29,30)(33,35,39,38)(34,40,42,36)(37,43,47,46)(41,45,48,44)(2,8)(4,7)(5,14)(11,16)(19,26)(20,28)(21,24)(25,31)(33,36,39,40)(34,35,42,38)(37,45,47,44)(41,46,48,43)(1,4,6,7)(2,9,8,3)(5,12,14,15)(10,16,13,11)(17,19)(18,24)(20,29)(21,23)(22,26)(25,30)(27,28)(31,32)(33,36)(34,35)(37,45)(38,42)(39,40)(41,46)(43,48)(44,47)(1,2)(3,4)(5,10)(6,8)(7,9)(11,12)(13,14)(15,16)(17,20,22,28)(18,25,23,31)(19,27,26,29)(21,30,24,32)(33,37)(34,41)(35,43)(36,44)(38,46)(39,47)(40,45)(42,48)(1,5,6,14)(2,10,8,13)(3,11,9,16)(4,12,7,15)(17,21,22,24)(18,19,23,26)(20,30,28,32)(25,27,31,29)(33,38,39,35)(34,36,42,40)(37,46,47,43)(41,44,48,45)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.