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