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