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)(33,34,39,36)(35,42,37,40)(38,44,46,41)(43,47,45,48)(2,7)(4,14)(8,11)(10,15)(17,18,22,23)(19,20,24,27)(21,25,29,30)(26,28,31,32)(33,34,39,36)(35,40,37,42)(38,41,46,44)(43,47,45,48)(2,7)(3,12)(4,14)(5,16)(18,23)(20,27)(21,29)(26,31)(33,35,39,37)(34,40,36,42)(38,43,46,45)(41,47,44,48)(1,3,6,12)(2,8,7,11)(4,15,14,10)(5,13,16,9)(17,19)(18,20)(21,26)(22,24)(23,27)(25,28)(29,31)(30,32)(33,36,39,34)(35,40,37,42)(38,44,46,41)(43,47,45,48)(1,4)(2,9)(3,10)(5,11)(6,14)(7,13)(8,16)(12,15)(17,20)(18,24)(19,23)(21,28)(22,27)(25,31)(26,30)(29,32)(33,37,39,35)(34,40,36,42)(38,45,46,43)(41,47,44,48)(1,5,6,16)(2,10,7,15)(3,13,12,9)(4,11,14,8)(17,21)(18,25)(19,26)(20,28)(22,29)(23,30)(24,31)(27,32)(33,38,39,46)(34,41,36,44)(35,43,37,45)(40,47,42,48)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.