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