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