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