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