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)(17,18,22,24)(19,23,26,20)(21,29,30,25)(27,28,32,31)(34,38)(35,41)(40,45)(42,47)(1,3)(2,7)(4,10)(5,9)(6,11)(8,14)(12,15)(13,16)(17,19)(18,23)(20,24)(21,27)(22,26)(25,31)(28,29)(30,32)(33,34,37,38)(35,39,41,44)(36,40,43,45)(42,46,47,48)(2,5)(7,9)(8,12)(14,15)(18,24)(19,26)(25,29)(27,32)(33,34)(35,39)(36,40)(37,38)(41,44)(42,46)(43,45)(47,48) involution — undirected(1,3)(2,7)(4,10)(5,9)(6,11)(8,14)(12,15)(13,16)(17,20,22,23)(18,19,24,26)(21,28,30,31)(25,27,29,32)(33,34)(35,39)(36,40)(37,38)(41,44)(42,46)(43,45)(47,48)(1,4,6,13)(2,8,5,12)(3,10,11,16)(7,14,9,15)(17,21,22,30)(18,25,24,29)(19,27,26,32)(20,28,23,31)(33,35,37,41)(34,39,38,44)(36,42,43,47)(40,46,45,48)(1,5,6,2)(3,9,11,7)(4,12,13,8)(10,15,16,14)(17,19)(18,23)(20,24)(21,27)(22,26)(25,31)(28,29)(30,32)(33,36,37,43)(34,40,38,45)(35,42,41,47)(39,46,44,48)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.