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