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