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