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