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