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