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