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