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