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