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