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