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