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