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