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)(17,18,22,24)(19,23,28,25)(20,26,31,29)(21,30,32,27)(33,34)(35,42)(36,38)(37,41)(39,43)(40,47)(44,48)(45,46)(3,9)(7,13)(10,15)(14,16)(17,19)(18,23)(20,30)(21,29)(22,28)(24,25)(26,32)(27,31)(33,35)(34,40)(36,44)(37,45)(38,46)(39,47)(41,48)(42,43) involution — undirected(2,6)(7,13)(8,11)(14,16)(18,24)(19,28)(26,29)(27,30)(33,36,39,37)(34,38,43,41)(35,44,47,45)(40,46,42,48)(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,19)(18,25)(20,27)(21,29)(22,28)(23,24)(26,32)(30,31)(33,37,39,36)(34,41,43,38)(35,45,47,44)(40,48,42,46)(1,3)(2,7)(4,10)(5,9)(6,13)(8,14)(11,16)(12,15)(17,20,22,31)(18,26,24,29)(19,27,28,30)(21,25,32,23)(33,35)(34,42)(36,44)(37,45)(38,48)(39,47)(40,43)(41,46)(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,21,22,32)(18,27,24,30)(19,29,28,26)(20,23,31,25)(33,38,39,41)(34,36,43,37)(35,46,47,48)(40,44,42,45)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.