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