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