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