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