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