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