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