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