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