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