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