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