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