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