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