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