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