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