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