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