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