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