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