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