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