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