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