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