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