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