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