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