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)(9,15)(11,12)(14,16)(17,18,23,25)(19,24,29,31)(20,26,28,22)(21,27,30,32)(33,34,40,44)(35,41,46,48)(36,42,37,39)(38,43,45,47)(2,7)(4,10)(9,13)(12,14)(17,19)(18,24)(20,30)(21,28)(22,27)(23,29)(25,31)(26,32)(33,35,40,46)(34,41,44,48)(36,47,37,43)(38,39,45,42)(2,7)(3,8)(9,13)(11,16)(18,25)(19,29)(20,28)(27,32)(33,36,40,37)(34,42,44,39)(35,43,46,47)(38,41,45,48)(1,3)(2,4)(5,11)(6,8)(7,10)(9,12)(13,14)(15,16)(17,20,23,28)(18,26,25,22)(19,30,29,21)(24,32,31,27)(33,37,40,36)(34,39,44,42)(35,43,46,47)(38,41,45,48)(1,4)(2,8)(3,7)(5,14)(6,10)(9,11)(12,15)(13,16)(17,21,23,30)(18,27,25,32)(19,20,29,28)(22,24,26,31)(33,38)(34,43)(35,39)(36,41)(37,48)(40,45)(42,46)(44,47)(1,5,6,15)(2,9,7,13)(3,11,8,16)(4,12,10,14)(17,22,23,26)(18,28,25,20)(19,27,29,32)(21,31,30,24)(33,39)(34,36)(35,45)(37,44)(38,46)(40,42)(41,47)(43,48)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.