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