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