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)(33,34,37,40,38,41,36,45)(35,42,43,47,44,39,46,48)(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)(33,35,38,44)(34,39,41,42)(36,43,37,46)(40,47,45,48)(2,7)(6,14)(8,15)(9,16)(17,20,23,19)(18,25,28,30)(21,29,22,31)(24,27,32,26)(17,21,23,22)(18,26,28,27)(19,29,20,31)(24,25,32,30)(33,36,38,37)(34,40,41,45)(35,43,44,46)(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.