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