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