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