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