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)(20,26)(21,24)(22,25)(23,28)(29,32)(30,31)(33,34,37,40,38,41,36,45)(35,42,43,47,44,39,46,48)(1,3,5,11)(2,6,8,9)(4,10,12,16)(7,13,14,15)(17,19,22,29)(18,23,25,31)(20,28,21,30)(24,27,26,32)(33,35,38,44)(34,39,41,42)(36,43,37,46)(40,47,45,48)(1,4,5,12)(2,7,8,14)(3,10,11,16)(6,13,9,15)(17,20,22,21)(18,24,25,26)(19,28,29,30)(23,27,31,32)(2,8)(4,12)(6,9)(10,16)(18,25)(23,31)(24,26)(27,32)(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.