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