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