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