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