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