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