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