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