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