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