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