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