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