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