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