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