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