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