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