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