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