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