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