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