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