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