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