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