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