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