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