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