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