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