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