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