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